DE8502236U1 - VALVE - Google Patents

VALVE

Info

Publication number
DE8502236U1
DE8502236U1 DE19858502236U DE8502236U DE8502236U1 DE 8502236 U1 DE8502236 U1 DE 8502236U1 DE 19858502236 U DE19858502236 U DE 19858502236U DE 8502236 U DE8502236 U DE 8502236U DE 8502236 U1 DE8502236 U1 DE 8502236U1
Authority
DE
Germany
Prior art keywords
valve
ball
gas
seal
housing
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
DE19858502236U
Other languages
German (de)
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.)
Vaillant GmbH
Original Assignee
Joh Vaillant GmbH and Co
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 Joh Vaillant GmbH and Co filed Critical Joh Vaillant GmbH and Co
Priority to DE19858502236U priority Critical patent/DE8502236U1/en
Publication of DE8502236U1 publication Critical patent/DE8502236U1/en
Expired legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K5/00Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
    • F16K5/06Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfaces; Packings therefor
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01PCOOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P7/00Controlling of coolant flow
    • F01P7/14Controlling of coolant flow the coolant being liquid
    • F01P7/16Controlling of coolant flow the coolant being liquid by thermostatic control
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K17/00Safety valves; Equalising valves, e.g. pressure relief valves
    • F16K17/36Safety valves; Equalising valves, e.g. pressure relief valves actuated in consequence of extraneous circumstances, e.g. shock, change of position
    • F16K17/38Safety valves; Equalising valves, e.g. pressure relief valves actuated in consequence of extraneous circumstances, e.g. shock, change of position of excessive temperature
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00Actuating devices; Operating means; Releasing devices
    • F16K31/002Actuating devices; Operating means; Releasing devices actuated by temperature variation
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K5/00Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
    • F16K5/06Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfaces; Packings therefor
    • F16K5/0605Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfaces; Packings therefor with particular plug arrangements, e.g. particular shape or built-in means

Description

Joh. Vaillant GmbH u. Co GM 481Joh.Vaillant GmbH u.Co GM 481

2 Ε Ol 85 2 Ε Ol 85

VentilValve

Die vorliegende Erfindung bezieht sich auf ein Ventil, insbesondere ein Kugelventil, gemäß dem Oberbegriff des Hauptanspruchs.The present invention relates to a valve, in particular a ball valve, according to the preamble of the main claim.

Solche Ventile werden insbesondere als Gasabsperrhähne eingesetzt, wie sie gasbeheizten Geräten vorgeschaltet sind. Hierbei besteht die Forderung, daß die Ventile einerseits leichtgängig im Normalzustand und gasdicht sowohl im Normalzustand als auch im Brandfalle sind. Da die Ventile Gummi- bzw. Kunststoffdichtungen enthalten und diese im Brandfall über ihre zulässige Betriebstemperatur hinaus erhitzt werden, werden bei erhöhten Umgebungstemperaturen derartige Gasabsperrventile undicht.Such valves are used in particular as gas shut-off valves, as they are connected upstream of gas-heated devices are. There is a requirement here that the valves on the one hand smoothly in the normal state and gas-tight are both in the normal state and in the event of fire. Because the valves contain rubber or plastic seals and these are heated above their permissible operating temperature in the event of a fire such gas shut-off valves leak at elevated ambient temperatures.

Der vorliegenden Erfindung liegt deshalb die Aufgabe zugrunde, ein solches Ventil auch bei erhöhten Umgebungstemperaturen gasdicht beziehungsweise auf Gasdurchgang mit definierbarer Leckrate zu gestalten. Die Lösung der Aufgabe Hegt in den kennzeichnenden Merkmalen des Hauptanspruchs. Weitere Ausgestaltungen und besonders vorteilhafte Weiterbildungen der Erfindung sind Gegenstand der Unteransprüche beziehungsweise gehen aus der nachfolgenden Beschreibung hervor, die ein Ausführungsbeispiel der Erfindung anhand der Zeichnung näher erläutert.The present invention is therefore based on the object of designing such a valve in a gas-tight manner even at elevated ambient temperatures or for gas passage with a definable leak rate. The solution to the problem lies in the characterizing features of the main claim. Further refinements and particularly advantageous developments of the invention are the subject matter of the subclaims or emerge from the following description, which explains an embodiment of the invention in more detail with reference to the drawing.

«et»·«Et» ·

Das in der Zeichnung dargestellte Kugel-Gasabsperrventi1 weist ein Gehäuse (1) auf, das eine Gaseinlaßöffnung (2) und eine Gasablaßöffnung (2) aufweist. Diese öffnungen sind mit Außengewinde versehen, so daß weiterführende Anschlußleitungen angebracht werden können. Im zentralen Innenraum (4) ist eine kugelige Innenoberfläche (5) eines Hohlraumes ausgearbeitet, in der eine Kugel (6)The ball gas shut-off valve shown in the drawing has a housing (1) which has a gas inlet opening (2) and a gas discharge opening (2). These openings are provided with external threads, so that further Connection lines can be attached. In the central Inner space (4) is a spherical inner surface (5) of a cavity in which a ball (6)

^ c ι α ^ c t ι* lot*. uicoc nujjci nciou eine nuoiiciiiiiuu^ \r /^ c ι α ^ c t ι * lot *. uicoc nujjci nciou a nuoiiciiiiiuu ^ \ r / auf, in die ein Betätigungsstift (8) eingreift, der mittels einer Handhabe (9) drehbar ist. Die Kugel weist zwei zueinander senkrechte Bohrungen (10 + 11) auf, wobei die Bohrung (10) durch die Kugel hindurchgeht, während die senkrecht darzustellende Bohrung (11) von der Oberseite bis in den Mittenbereich zur Bohrung (10) reicht.on, in which an actuating pin (8) engages, which is rotatable by means of a handle (9). The ball has two perpendicular holes (10 + 11) on, the hole (10) going through the ball, while the hole (11) to be shown vertically from the top to the middle area to the hole (10) is enough.

Oe nach Stellung der Bohrungen können Aus- und Einlaß (2 + 3) miteinander verbunden werden oder voneinander getrennt werden.Depending on the position of the bores, outlet and inlet (2 + 3) can be connected or separated from each other.

In einer Schrägfläche (12), bezogen auf die Lage des Auslasses (2) und des Einlasses (3) ist eine Nut (13) eingearbeitet, in die ein Dichtring (14) eingelegt ist. Dieser Dichtring (14) steht über die Nut (13)" hervor, lehnt sich im Normalfall an die Außenwandung der Kugel an und umgibt etwa kreisförmig den Teil des Auslasses (2), der mit dem Innenraum (4) in Verbindung steht.In an inclined surface (12), based on the position of the outlet (2) and the inlet (3), a groove (13) is incorporated into which a sealing ring (14) is inserted. This sealing ring (14) protrudes beyond the groove (13) ″, normally leans against the outer wall of the ball and surrounds the part of the outlet (2) that is connected to the interior (4) in an approximately circular manner.

Auf der dem Auslaß (2) gegenüberliegenden Seite sind auf einer Schulter (15) eine oder mehrere Bimetallringscheiben (16) gelagert, die sich unmittelbar an der Wandung der Kugel (6) abstützen.On the side opposite the outlet (2) one or more bimetallic ring disks (16) mounted on a shoulder (15), which are located directly Support on the wall of the ball (6).

Im Normaifali dichtet der Dichtring (14) die Kugel gegenüber dem Auslaßstutzen (2) ab, wenn die Bohrung (10) rechtwinklig zum Auslaß (Z) gedreht wird in Stellung "geschlossen". In normal practice, the sealing ring (14) seals the ball against the outlet connection (2) when the bore (10) is rotated at right angles to the outlet (Z) to the "closed" position. Tritt nun ein Brandfall auf, das heißt, entstehen gegenüber der normalen Raumtemperatur überhöhte Temperaturen, so beginnt sich das oder die Bimetalle (16) zu verformen, das heißt, die Kugel wird verstärkt gegen den Dichtring (14) gepreßt. Andererseits wird sich aufgrund der erhöhten Umgebungstemperatur der Dichtring verformen beziehungsweise sogar verkoken, so daß er seine eigentliche Dichtfunktion nicht mehr wahrnehmen kann. Aufgrund der Verformung des oder der Bimetalle wird aber die Kugel dann gegen die Schrägfläche (12) angeglegt, so daß zwischen Kugel und Gehäuseinnenwandung eine metallische Dichtung bewirkt wird.If a fire now occurs, that is, the room temperature is excessive compared to the normal room temperature Temperatures, the bimetal or bimetal (16) begins to deform, that is, the ball is reinforced pressed against the sealing ring (14). On the other hand, due to the increased ambient temperature, the Deform sealing ring or even coke so that it no longer performs its actual sealing function can perceive. However, due to the deformation of the bimetal or bimetal, the ball is then against the Inclined surface (12) applied so that a metallic seal between the ball and the inner wall of the housing is effected.

Damit bleibt das stromab des Gasabsperrventils angeordnete gasbeheizte Gerät von der Gaszufuhr im Brandfall abgeschlossen. Nach Absenken der Temperatur 1m Aufstellungsraum des Gasabsperrventils würde zwar wieder eine Undichtigkeit auftreten, da die Bimetalle in ihre Ursprungslage zurückgehen, man kann aber davon ausgehen, daß inzwischen aufgrund des Brandes das Hauptgasventil des Hauses oder der Wohnung geschlossen wurde, das in einem anderen Raum angeordnet 1st als das dem gasbeheizten Gerät unmittelbar vorgeschaltete Gasventil.In this way, the gas-heated device arranged downstream of the gas shut-off valve remains shut off from the gas supply in the event of a fire. After lowering the temperature 1m in the room where the gas shut-off valve would be Again a leak will occur because the bimetals go back to their original position, but it can be assumed that in the meantime due to the fire the main gas valve of the house or apartment has been closed, which is located in another room 1st as the gas valve directly upstream of the gas-heated device.

Es sei noch darauf hingewiesen, daß die Anwendung der Erfindung nicht auf Kugelventile beschränkt ist, ebenso könnte der Wälzkörper (4) als Zylinder oder als Schieber ausgebildet sein.It should be noted that the application of the invention is not limited to ball valves, as could the rolling element (4) as a cylinder or be designed as a slide.

• - ι ·• - ι ·

Wesentlich ist, daß der beliebig geformte Ventilkörper unter der Einwirkung eines Bimetalls bei erhöhten Umgebungstemperaturen gegen eine sonst nicht wirksame Dichtfläche gepreßt wird, weil die eigentliche Dichtfläche aufgrund der erhöhten Umgebungstemperatur ausgefallen ist.It is essential that the arbitrarily shaped valve body under the action of a bimetal at increased Ambient temperatures is pressed against an otherwise ineffective sealing surface because the actual The sealing surface has failed due to the increased ambient temperature.

Claims (1)

Joh. Vaillant GmbH u. Co GM 481Joh.Vaillant GmbH u.Co GM 481 2 3. 01, 352 3. 01, 35 AnsprücheExpectations Ventil mit einem, wenigstens zwei öffnungen aufweisenden Gehäuse, welches einen Ventilkörper lagert, der eine Ausdehnung aufweist, über die die öffnungen verbunden oder voneinander getrennt werden, wobei im Gehäuse eipe Dichtung vorgesehen ist, gegen die sich der Dichtkörper abstützt, dadurch gekennzeichnet, daß ein Bimetallelement (16) vorgesehen ist, welches den Ventilkörper (4) gegen das Gehäuse (1) bei Verformung aufgrund von Erwärmung drückt.Valve with a housing which has at least two openings and which supports a valve body which has an extension via which the openings are connected or separated from one another, with in the housing Eipe seal is provided against which the sealing body is supported, thereby characterized in that a bimetal element (16) is provided which presses the valve body (4) against the housing (1) when it is deformed due to heating. Ventil nach Anspruch eins, dadurch gekennzeichnet, daß bei Ausbildung als Kugelventil die Dichtung (14) als Ringdichtung in einer Nut (13) vorgesehen ist, die in einer Kugelabschnittsfläche (12) angeordnet ist.Valve according to claim one, characterized in that when designed as a ball valve the seal (14) is provided as a ring seal in a groove (13) which is arranged in a spherical segment surface (12). Ventil nach Anspruch eins oder zwei, dadurch gekennzeichnet, daß die Dichtung (12) der Einlaßöffnung (2) zugeordnet ist und daß das Bimetall (16) auf der dem Einlaß gegenüberliegenden Seite angeordnet ist.Valve according to claim one or two, characterized in that the seal (12) is the Inlet opening (2) is assigned and that the bimetal (16) is arranged on the side opposite the inlet.
DE19858502236U 1985-01-29 1985-01-29 VALVE Expired DE8502236U1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19858502236U DE8502236U1 (en) 1985-01-29 1985-01-29 VALVE

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19858502236U DE8502236U1 (en) 1985-01-29 1985-01-29 VALVE

Publications (1)

Publication Number Publication Date
DE8502236U1 true DE8502236U1 (en) 1985-04-25

Family

ID=6776768

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19858502236U Expired DE8502236U1 (en) 1985-01-29 1985-01-29 VALVE

Country Status (1)

Country Link
DE (1) DE8502236U1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4103987A1 (en) * 1990-04-04 1991-10-10 Rheinauer Masch Armaturen Shut=off device for combustible fluid piping - includes expandable insert for emergency sealing
DE4112473A1 (en) * 1991-04-17 1992-10-22 Gottlob Bee Apparatebau Gmbh & Domestic gas ball stopcock with elastomer, e.g. PTFE, seals - comprising seal-carrying rings making sec. seal by sealant inflating above 100 deg.C stable to 650 deg.C to prevent leakage in case of fire
AT399210B (en) * 1990-03-14 1995-04-25 Rheinauer Masch Armaturen Shut-off device for conduits carrying flammable fluids

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT399210B (en) * 1990-03-14 1995-04-25 Rheinauer Masch Armaturen Shut-off device for conduits carrying flammable fluids
DE4103987A1 (en) * 1990-04-04 1991-10-10 Rheinauer Masch Armaturen Shut=off device for combustible fluid piping - includes expandable insert for emergency sealing
DE4112473A1 (en) * 1991-04-17 1992-10-22 Gottlob Bee Apparatebau Gmbh & Domestic gas ball stopcock with elastomer, e.g. PTFE, seals - comprising seal-carrying rings making sec. seal by sealant inflating above 100 deg.C stable to 650 deg.C to prevent leakage in case of fire

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