DE77761C - Stuffing box-like rod seal with flexible hose - Google Patents
Stuffing box-like rod seal with flexible hoseInfo
- Publication number
- DE77761C DE77761C DENDAT77761D DE77761DA DE77761C DE 77761 C DE77761 C DE 77761C DE NDAT77761 D DENDAT77761 D DE NDAT77761D DE 77761D A DE77761D A DE 77761DA DE 77761 C DE77761 C DE 77761C
- Authority
- DE
- Germany
- Prior art keywords
- hose
- stuffing box
- flexible hose
- valve rod
- rod seal
- 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 - Lifetime
Links
- 239000004744 fabric Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 description 2
- 238000002955 isolation Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000012254 powdered material Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
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
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/50—Sealings between relatively-movable members, by means of a sealing without relatively-moving surfaces, e.g. fluid-tight sealings for transmitting motion through a wall
- F16J15/52—Sealings between relatively-movable members, by means of a sealing without relatively-moving surfaces, e.g. fluid-tight sealings for transmitting motion through a wall by means of sealing bellows or diaphragms
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
Description
KAISERLICHESIMPERIAL
PATENTAMT.xlPATENT OFFICE.xl
Die den Gegenstand der Erfindung bildende Abdichtung für Ventilstangen etc. bezweckt, ein Festklemmen der auf- und niederbewegbaren Ventilstangen zu vermeiden, wie solches bei Stopfbüchsenabdichtungen je nach der Höhe des im Ventilgehäuse vorherrschenden Druckes in stärkerem oder schwächerem Mafse stattfindet. The object of the invention forming the seal for valve rods, etc. aims, a To avoid jamming of the valve rods that can be moved up and down, as is the case with Stuffing box seals depending on the level of pressure prevailing in the valve housing takes place to a greater or lesser extent.
Als Abdichtung wird, wie auf der Zeichnung durch die Fig. 1 bis 4 veranschaulicht, ein aus Gummi oder anderem elastischen Material hergestellter Schlauch α verwendet, der einestheils an der Ventilstange b, anderentheils an der feststehenden Gehäusewandung c dicht befestigt ist.As illustrated in the drawing by FIGS. 1 to 4, a hose α made of rubber or other elastic material is used as a seal, which is tightly fastened on the one hand to the valve rod b and on the other hand to the stationary housing wall c .
Um nun der Ventilstange b ihre Beweglichkeit zu erhalten und ein Anklemmen oder Festsetzen des Schlauches α an derselben zu verhüten, ist bei der Ausführungsform nach Fig. ι bis 3 zwischen Ventilstange und Schlauch eine Spiralfeder d eingeschoben, deren Windungen, wenn das Ventil geöffnet ist (Fig. 1), dicht an einander liegen bezw. einander genähert sind, bei geschlossenem Ventil (Fig. 2) von einander entfernt sind, oder umgekehrt.In order to maintain the mobility of the valve rod b and to prevent the hose α from jamming or sticking to the same, a spiral spring d is inserted between the valve rod and the hose in the embodiment according to FIGS. Fig. 1), close to each other, respectively. are approached, are distant from one another when the valve is closed (Fig. 2), or vice versa.
Durch die Einschaltung der Feder wird die Reibung zwischen Abdichtung und Ventilstange beim Bewegen der letzteren vollständig vermieden, weil die Feder d einen gröfseren Durchmesser als die Ventilstange b besitzt, so dafs nur die Ueberwindung der in einzelnen Punkten an der Ventilstange anliegenden Spiralfeder erforderlich ist.By switching on the spring, the friction between the seal and the valve rod when the latter is moved is completely avoided, because the spring d has a larger diameter than the valve rod b , so that only the coil spring which is in contact with the valve rod at individual points is required.
Die Spiralfeder kann lose zwischen Ventilstange b und Schlauch α eingelegt sein oder auch analog der Schlauchabdichtung einestheils mit der Ventilstange, anderentheils mit dem Ventilgehäuse verbunden werden, so dafs im letzteren Falle die Bewegung der Feder derjenigen der Ventilstange folgt.The spiral spring can be loosely inserted between the valve rod b and the hose α or, analogous to the hose seal, connected on the one hand to the valve stem and on the other hand to the valve housing, so that in the latter case the movement of the spring follows that of the valve stem.
Der Gummischlauch α wird durch die zwischengeschaltete Spiralfeder d verhindert, sich an der Ventilstange festzusetzen oder mit dieser durch Oxydation der letzteren zu verbinden, so dafs die Beweglichkeit der Ventilstange durch deren Abdichtung nicht behindert ist.The interposed spiral spring d prevents the rubber hose α from sticking to the valve rod or from connecting to it through oxidation of the latter, so that the mobility of the valve rod is not hindered by its sealing.
An Stelle der Spiralfeder kann als Isolirschicht eine Zwischenlage aus einzelnen Ringen oder Gewebe oder, wie in Fig. 4 gezeigt, aus pulverförmigen Materialien zur Verwendung kommen, wenn nur diese Materialien so präparirt oder gewählt sind, dafs ein Festsetzen derselben an der Ventilstange nicht stattfindet.Instead of the spiral spring, an intermediate layer of individual rings can be used as an insulating layer or fabric or, as shown in Fig. 4, of powdered materials for use come, if only these materials are so prepared or chosen that they set same does not take place on the valve rod.
Bei Anwendung einzelner auf einander stehender Ringe oder Hülsen wird deren Durchmesser zweckmäfsig etwas gröfser als derjenige der Ventilstange gewählt, damit die Berührungsflächen derselben auf ein Minimum reducirt werden.When using individual rings or sleeves standing on top of one another, their The diameter is appropriately chosen to be somewhat larger than that of the valve rod, so that the Contact surfaces of the same are reduced to a minimum.
Das Kennzeichnende der neuen Abdichtung beruht in der Isolirung des die Abdichtung herstellenden, einestheils an der Ventilstange, anderentheils an dem Ventilgehäuse befestigten Schlauches bezüglich seines dehnbaren Theiles gegen die von ihm umfafste bewegbare Stange, gleichviel, ob zur Herstellung der Isolirschicht eine Spiralfeder, einzelne Ringe, eine Gewebelage oder pulverförmige Körper Verwendung finden.The characteristic of the new seal is the isolation of the seal manufactured, partly attached to the valve rod and partly attached to the valve housing Hose with respect to its expandable part against the movable rod it encompasses, It doesn't matter whether a spiral spring, individual rings or a layer of fabric are used to produce the insulating layer or powdery bodies are used.
Claims (1)
Publications (1)
Publication Number | Publication Date |
---|---|
DE77761C true DE77761C (en) |
Family
ID=350543
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DENDAT77761D Expired - Lifetime DE77761C (en) | Stuffing box-like rod seal with flexible hose |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE77761C (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1056025B (en) * | 1957-07-11 | 1959-04-23 | Konrad Ruckstuhl | Sealing of the crankcase of briquette extrusion presses |
DE973260C (en) * | 1943-08-25 | 1959-12-31 | Elie Gustave Eugene Couraud | Spindle seal for shut-off devices, especially for slides, valves and taps |
EP0437112A2 (en) * | 1990-01-09 | 1991-07-17 | W.R. Grace & Co.-Conn. | Improved seal |
-
0
- DE DENDAT77761D patent/DE77761C/en not_active Expired - Lifetime
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE973260C (en) * | 1943-08-25 | 1959-12-31 | Elie Gustave Eugene Couraud | Spindle seal for shut-off devices, especially for slides, valves and taps |
DE1056025B (en) * | 1957-07-11 | 1959-04-23 | Konrad Ruckstuhl | Sealing of the crankcase of briquette extrusion presses |
EP0437112A2 (en) * | 1990-01-09 | 1991-07-17 | W.R. Grace & Co.-Conn. | Improved seal |
EP0437112A3 (en) * | 1990-01-09 | 1991-11-27 | W.R. Grace & Co.-Conn. | Improved seal |
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